public static void Main()
int[,] a = new int[3, 2];
a[0, 0] = 2; a[0, 1] = 8;
a[1, 0] = 5; a[1, 1] = 7;
a[2, 0] = 9; a[2, 1] = 6;
Console.WriteLine(a[0, 0]);
Console.WriteLine(a[0, 1]);
Console.WriteLine(a[1, 0]);
Console.WriteLine(a[1, 1]);
Console.WriteLine(a[2, 0]);
Console.WriteLine(a[2, 1]);